package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.constant.JwtClaimsConstant;
import com.sky.constant.MessageConstant;
import com.sky.controller.user.UserController;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.UserMapper;
import com.sky.properties.JwtProperties;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.JwtUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.UserLoginVO;
import org.apache.tomcat.util.descriptor.web.WebXml;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.security.auth.login.LoginException;
import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;


@Service
public class UserServiceImpl implements UserService {

    private static final String WX_LOGIN = "https://api.weixin.qq.com/sns/jscode2session";

    @Autowired
    private WeChatProperties weChatProperties;

    @Autowired
    private UserMapper userMapper;

    /**
     * 用户登录接口
     * @param userLoginDTO
     * @return
     */
    @Override
    public User login(UserLoginDTO userLoginDTO) {
        String openid = getOpenid(userLoginDTO.getCode());
        if (openid == null){
            throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
        }

        User user = userMapper.getByOpenId(openid);
        if (user == null){
            user = User.builder()
                    .openid(openid)
                    .createTime(LocalDateTime.now())
                    .build();
            userMapper.insert(user);
        }
        return user;
    }

    private String getOpenid(String code) {
        Map<String,String> claims = new HashMap<>();
        claims.put("js_code", code);
        claims.put("appid",weChatProperties.getAppid());
        claims.put("secret",weChatProperties.getSecret());
        claims.put("grant_type","authorization_code");
        String doGet = HttpClientUtil.doGet(WX_LOGIN, claims);
        JSONObject jsonObject = JSON.parseObject(doGet);
        String openid = jsonObject.getString("openid");
        return openid;
    }
}
